Improvement in middlings-separators



2 Sheets-Sheet 1. W. J'. MERRI'VF. MIDDLINGS SEPARATOR. No.173,734.Patentedl Feb., 22, 1876.

WITNEssEs. INV-Ewan..

W l l n N.FETER5. FHDTO-LITMOGRAPHER, WASHINGTON. D CA 2 Sheets-Sheet 2.W. J. MERRITT.

MIDDLINGS SEPARATOR.

v 4 N .173,.'734` Patented Feb.zz,1ssfres.'`

l Fig. 2.

WITNES Es INvENToR.

` UNITED STATES PATENT OFFICE.

WILLIAM J.' MEREITT, oF BARDOLPE, ILLINOIS.

IMPROVEMENT IN MIDDLINGS-SEPARATORS.

Specification forming part of Letters Patent No. 173,734, dated February22, 1876; application filed VMarch 16, 1875.

To all whom it may concern:

Be it known that I, WILLIAM J. MEERITT, of Bardolph, in the countyofMcDonoughand State of Illinois, have invented au Improvement inMiddlings-Separators; and I do herebydeclare that the following is afull, clear,

. and exact description thereof,which will enable others skilled in theart to make and use the same, reference being had to the accompaaround ahollow center-post, through which a scribed.

rotating sha-ft passes, which, by means ot'- arms andl suitableappliances attached to the center-post, gives the proper agitation thatis.4

required, as will be hereinafter more fully de- Figure l is aperspective View of the separator, with part of the top frame cutaway.Fig.

2 is cross-section ot' the separator-frame.A

Fig. 3 is the sieve -frame, bottoln side up, showing the manner oflacing the cloth to the iframe. Y

In the drawings, Figs. l and 2, B B B B represent a frame, which isformed by means ofthe bolts r r r ll", attached to the center-post D. HH H H represent a frame, which is attached to the inside of the frame BB B B in an incline or spiral form around said frame. Between this frameandthe center-post l) the sieve-frames G Gr Gr G are placed. I I I Irepresent leather-straps, which are attached at 'their lower ends to theframe B B B; the up- 1 per end to the center of cross-frame s s s s ofthe stand A. (See Fig. l.) The shaft C 'passes through the center-postD, (see Fig. 2,)

which is bored out sufficiently large to allow the necessary vibrationwhen in operation. At each end of the center-post D is rmly attached arim, E, which has teeth projecting inward., Opposite these rims on theshaft G. arms a a areattached.

Fig. 3 shows .the under side of the sieveframe, showing the manner oflacing or tightening the cloth. The bolting-cloth is bound on the edgewith canvas of sulicieut width to lap over the edge of the frames, andis filled with eyelets, which the lacing-cord passes" through, by whichthe cloth can be stretched to any desirable tightness.

The operation is as follows: Motion is applied to the pulley d, and asthe shaft() commences to revolve the arms a a strike against the teethon the inside of the rim E, which gives the separator a continuousvibratingr motion, and the separator being hung upon the leather strapsI I I I, the required agitation is by thismeans easily produced. Themiddlings or other material to be separated are let in on .the uppersieve, which, being. on an incline, the agitation ot the separatorcauses all the branl and other impurities that do not pass through thefirst sieve to pass over the edge and fall on the second sieve, and soon around the whole series of sieves in the same manner, until they passout ot thesepav rator. Y

, By having diierent `grades of the cloth `on the dii'erentsieveft'rames, will make different grades ot' the material separated,and each grade can be taken out under each sieve-frame if necessary, oronly one or two places, as may be desired.

Having thus fully described my invention,

whatI claim as new, and desire to secure by Witnesses Tnos. J. PRICE, J.M. PRICE.

wM. .1.7MERRITT.

iineness of

